Revision tags: v6.2.1, v6.2.0, v6.3.0, v6.0.1, v6.0.0, v6.0.0rc1, v6.1.0, v5.8.3, v5.8.2, v5.8.1, v5.8.0, v5.9.0, v5.8.0rc1, v5.6.3, v5.6.2, v5.6.1, v5.6.0, v5.6.0rc1, v5.7.0, v5.4.3, v5.4.2 |
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fcf6efef |
| 02-Mar-2019 |
Sascha Wildner <saw@online.de> |
kernel: Remove numerous #include <sys/thread2.h>.
Most of them were added when we converted spl*() calls to crit_enter()/crit_exit(), almost 14 years ago. We can now remove a good chunk of them agai
kernel: Remove numerous #include <sys/thread2.h>.
Most of them were added when we converted spl*() calls to crit_enter()/crit_exit(), almost 14 years ago. We can now remove a good chunk of them again for where crit_*() are no longer used.
I had to adjust some files that were relying on thread2.h or headers that it includes coming in via other headers that it was removed from.
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Revision tags: v5.4.1, v5.4.0, v5.5.0, v5.4.0rc1, v5.2.2, v5.2.1, v5.2.0, v5.3.0, v5.2.0rc, v5.0.2, v5.0.1, v5.0.0, v5.0.0rc2, v5.1.0, v5.0.0rc1, v4.8.1, v4.8.0, v4.6.2, v4.9.0, v4.8.0rc, v4.6.1, v4.6.0, v4.6.0rc2, v4.6.0rc, v4.7.0, v4.4.3, v4.4.2, v4.4.1, v4.4.0, v4.5.0, v4.4.0rc, v4.2.4, v4.3.1, v4.2.3, v4.2.1, v4.2.0, v4.0.6, v4.3.0, v4.2.0rc, v4.0.5, v4.0.4 |
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b5523eac |
| 19-Feb-2015 |
Sascha Wildner <saw@online.de> |
kernel: Move us to using M_NOWAIT and M_WAITOK for mbuf functions.
The main reason is that our having to use the MB_WAIT and MB_DONTWAIT flags was a recurring issue when porting drivers from FreeBSD
kernel: Move us to using M_NOWAIT and M_WAITOK for mbuf functions.
The main reason is that our having to use the MB_WAIT and MB_DONTWAIT flags was a recurring issue when porting drivers from FreeBSD because it tended to get forgotten and the code would compile anyway with the wrong constants. And since MB_WAIT and MB_DONTWAIT ended up as ocflags for an objcache_get() or objcache_reclaimlist call (which use M_WAITOK and M_NOWAIT), it was just one big converting back and forth with some sanitization in between.
This commit allows M_* again for the mbuf functions and keeps the sanitizing as it was before: when M_WAITOK is among the passed flags, objcache functions will be called with M_WAITOK and when it is absent, they will be called with M_NOWAIT. All other flags are scrubbed by the MB_OCFLAG() macro which does the same as the former MBTOM().
Approved-by: dillon
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Revision tags: v4.0.3, v4.0.2, v4.0.1, v4.0.0, v4.0.0rc3, v4.0.0rc2, v4.0.0rc, v4.1.0, v3.8.2 |
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73029d08 |
| 29-Jun-2014 |
Franco Fichtner <franco@lastsummer.de> |
kernel: make pktinfo and cpuid native to ip_input()
In order to remove ether_input_pkt(), switch the prototype of if_input() and adjust all callers. While there, consolidate the style of the invoke
kernel: make pktinfo and cpuid native to ip_input()
In order to remove ether_input_pkt(), switch the prototype of if_input() and adjust all callers. While there, consolidate the style of the invoke.
Suggested and reviewed by: sephe
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Revision tags: v3.8.1, v3.6.3, v3.8.0, v3.8.0rc2, v3.9.0, v3.8.0rc, v3.6.2, v3.6.1, v3.6.0, v3.7.1, v3.6.0rc, v3.7.0, v3.4.3 |
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ac9843a1 |
| 04-Jun-2013 |
Sepherosa Ziehau <sephe@dragonflybsd.org> |
ifq: Remove the unused parameter 'mpolled' from ifq dequeue interface
The ifq_poll() -> ifq_dequeue() model is not MPSAFE, and mpolled has not been used, i.e. set to NULL, for years; time to let it
ifq: Remove the unused parameter 'mpolled' from ifq dequeue interface
The ifq_poll() -> ifq_dequeue() model is not MPSAFE, and mpolled has not been used, i.e. set to NULL, for years; time to let it go.
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Revision tags: v3.4.2, v3.4.0, v3.4.1, v3.4.0rc, v3.5.0 |
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d3c9c58e |
| 20-Feb-2013 |
Sascha Wildner <saw@online.de> |
kernel: Use DEVMETHOD_END in the drivers.
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d40991ef |
| 13-Feb-2013 |
Sepherosa Ziehau <sephe@dragonflybsd.org> |
if: Per-cpu ifnet/ifaddr statistics, step 1/3
Wrap ifnet/ifaddr stats updating, setting and extraction into macros; ease upcoming changes.
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f0a26983 |
| 11-Jan-2013 |
Sepherosa Ziehau <sephe@dragonflybsd.org> |
if: Multiple TX queue support step 1 of many; introduce ifaltq subqueue
Put the plain queue information, e.g. queue header and tail, serializer, packet staging scoreboard and ifnet.if_start schedule
if: Multiple TX queue support step 1 of many; introduce ifaltq subqueue
Put the plain queue information, e.g. queue header and tail, serializer, packet staging scoreboard and ifnet.if_start schedule netmsg etc. into its own structure (subqueue). ifaltq structure could have multiple of subqueues based on the count that drivers can specify.
Subqueue's enqueue, dequeue, purging and states updating are protected by the subqueue's serializer, so for hardwares supporting multiple TX queues, contention on queuing operation could be greatly reduced.
The subqueue is passed to if_start to let the driver know which hardware TX queue to work on. Only the related driver's TX queue serializer will be held, so for hardwares supporting multiple TX queues, contention on driver's TX queue serializer could be greatly reduced.
Bunch of ifsq_ prefixed functions are added, which is used to perform various operations on subqueues. Commonly used ifq_ prefixed functions are still kept mainly for the drivers which do not support multiple TX queues (well, these functions also ease the netif/ convertion in this step :).
All of the pseudo network devices under sys/net are converted to use the new subqueue operation. netproto/802_11 is converted too. igb(4) is converted to use the new subqueue operation, the rest of the network drivers are only changed for the if_start interface modification.
For ALTQs which have packet scheduler enabled, only the first subqueue is used (*).
(*) Whether we should utilize multiple TX queues if ALTQ's packet scheduler is enabled is quite questionable. Mainly because hardware's multiple TX queue packet dequeue mechanism could have negative impact on ALTQ's packet scheduler's decision.
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dfd3b18b |
| 05-Jan-2013 |
Sepherosa Ziehau <sephe@dragonflybsd.org> |
if: Move if_cpuid into ifaltq; prepare multiple TX queues support
if_cpuid and if_npoll_cpuid are merged and moved into ifaltq as altq_cpuid, which indicates the owner CPU of the tx queue. Since we
if: Move if_cpuid into ifaltq; prepare multiple TX queues support
if_cpuid and if_npoll_cpuid are merged and moved into ifaltq as altq_cpuid, which indicates the owner CPU of the tx queue. Since we already have code in if_start_dispatch() to catching tx queue owner CPU changes, this merging is quite safe.
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51c70c94 |
| 03-Jan-2013 |
Sascha Wildner <saw@online.de> |
kernel: Remove some unused variables in network drivers.
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9ed293e0 |
| 28-Dec-2012 |
Sepherosa Ziehau <sephe@dragonflybsd.org> |
if: Move IFF_OACTIVE bit into ifaltq; prepare multiple TX queues support
ifaltq.altq_hw_oactive is now used to record that NIC's TX queue is full. IFF_OACTIVE is removed from kernel. User space IFF
if: Move IFF_OACTIVE bit into ifaltq; prepare multiple TX queues support
ifaltq.altq_hw_oactive is now used to record that NIC's TX queue is full. IFF_OACTIVE is removed from kernel. User space IFF_OACTIVE is kept for compability.
ifaltq.altq_hw_oactive should not be accessed directly. Following set of functions are provided and should be used: ifq_is_oactive(ifnet.if_snd) - Whether NIC's TX queue is full or not ifq_set_oactive(ifnet.if_snd) - NIC's TX queue is full ifq_clr_oactive(ifnet.if_snd) - NIC's TX queue is no longer full
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Revision tags: v3.2.2 |
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c4ce387c |
| 12-Nov-2012 |
Sepherosa Ziehau <sephe@dragonflybsd.org> |
fwe: Switch from device_polling to ifpoll
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Revision tags: v3.2.1, v3.2.0, v3.3.0, v3.0.3, v3.0.2, v3.0.1, v3.1.0, v3.0.0 |
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86d7f5d3 |
| 26-Nov-2011 |
John Marino <draco@marino.st> |
Initial import of binutils 2.22 on the new vendor branch
Future versions of binutils will also reside on this branch rather than continuing to create new binutils branches for each new version.
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Revision tags: v2.12.0, v2.13.0 |
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aa2b9d05 |
| 24-Jun-2011 |
Sascha Wildner <saw@online.de> |
kernel: Use NULL for DRIVER_MODULE()'s evh & arg (which are pointers).
This is just cosmetics for easier reading.
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Revision tags: v2.10.1, v2.11.0, v2.10.0, v2.9.1, v2.8.2, v2.8.1, v2.8.0, v2.9.0, v2.6.3, v2.7.3, v2.6.2, v2.7.2, v2.7.1, v2.6.1, v2.7.0, v2.6.0, v2.5.1, v2.4.1, v2.5.0, v2.4.0, v2.3.2, v2.3.1, v2.2.1, v2.2.0, v2.3.0, v2.1.1, v2.0.1 |
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9db4b353 |
| 14-May-2008 |
Sepherosa Ziehau <sephe@dragonflybsd.org> |
Reduce ifnet.if_serializer contention on output path: - Push ifnet.if_serializer holding down into each ifnet.if_output implementation - Add a serializer into ifaltq, which is used to protect send qu
Reduce ifnet.if_serializer contention on output path: - Push ifnet.if_serializer holding down into each ifnet.if_output implementation - Add a serializer into ifaltq, which is used to protect send queue instead of its parent's if_serializer. This change has following implication: o On output path, enqueueing packets and calling ifnet.if_start are decoupled o In device drivers, poll->dev_encap_ok->dequeue operation sequence is no longer safe, instead dequeue->dev_encap_fail->prepend should be used This serializer will be held by using lwkt_serialize_adaptive_enter() - Add altq_started field into ifaltq, which is used to interlock the calling of its parent's if_start, to reduce ifnet.if_serializer contention. if_devstart(), a helper function which utilizes ifaltq.altq_started, is added to reduce code duplication in ethernet device drivers. - Add if_cpuid into ifnet. This field indicates on which CPU device driver's interrupt will happen. - Add ifq_dispatch(). This function will try to hold ifnet.if_serializer in order to call ifnet.if_start. If this attempt fails, this function will schedule ifnet.if_start to be called on CPU located by ifnet.if_start_cpuid if_start_nmsg, which is per-CPU netmsg, is added to ifnet to facilitate ifnet.if_start scheduling. ifq_dispatch() is called by ether_output_frame() currently - Use ifq_classic_ functions, if altq is not enabled - Fix various device drivers bugs in their if_start implementation - Add ktr for ifq classic enqueue and dequeue - Add ktr for ifnet.if_start
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978400d3 |
| 06-Jan-2008 |
Sascha Wildner <swildner@dragonflybsd.org> |
Remove bogus checks after kmalloc(M_WAITOK) which never returns NULL.
Reviewed-by: hasso
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1736eecd |
| 09-Sep-2007 |
Sepherosa Ziehau <sephe@dragonflybsd.org> |
- Make fwe(4) aware of IFF_POLLING setting in its if_init(). - Allow IFF_POLLING flag to be turned on even when the interface is not up yet, since after above fix, all drivers that support polling(
- Make fwe(4) aware of IFF_POLLING setting in its if_init(). - Allow IFF_POLLING flag to be turned on even when the interface is not up yet, since after above fix, all drivers that support polling(4) will turn on/off interrupt in their if_init() based on IFF_POLLING.
This fixes the bug reported by many people that enabling "polling" in rc.conf's ifconfig_ifaceX does not work.
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f8c7a42d |
| 20-Dec-2006 |
Matthew Dillon <dillon@dragonflybsd.org> |
Rename sprintf -> ksprintf Rename snprintf -> knsprintf
Make allowances for source files that are compiled for both userland and the kernel.
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1f7ab7c9 |
| 25-Oct-2006 |
Matthew Dillon <dillon@dragonflybsd.org> |
Do a major clean-up of the BUSDMA architecture. A large number of essentially machine-independant drivers use the structures and definitions in machine-dependant directories that are really machine-
Do a major clean-up of the BUSDMA architecture. A large number of essentially machine-independant drivers use the structures and definitions in machine-dependant directories that are really machine-independant in nature.
Split <machine/bus_dma.h> into machine-depdendant and machine-independant parts and make the primary access run through <sys/bus_dma.h>.
Remove <machine/bus.h>, <machine/bus_memio.h> and <machine/bus_pio.h>. The optimizations related to bus_memio.h and bus_pio.h made a huge mess, introduced machine-specific knowledge into essentially machine-independant drivers, and required specific #include file orderings to do their job. They may be reintroduced in some other form later on.
Move <machine/resource.h> to <sys/bus_resource.h>. The contents of the file is machine-independant or can be made a superset across many platforms.
Make <sys/bus.h> include <sys/bus_dma.h> and <sys/bus_resource.h> and include <sys/bus.h> where necessary. Remove all #include's of <machine/resource.h> and <machine/bus.h>. That is, make the BUSDMA infrastructure integral to I/O-mapped and memory-mapped accesses to devices and remove a large chunk of machine-specific dependancies from drivers. bus_if.h and device_if.h are now required to be present when using <sys/bus.h>.
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77652cad |
| 05-Sep-2006 |
Matthew Dillon <dillon@dragonflybsd.org> |
Rename malloc->kmalloc, free->kfree, and realloc->krealloc. Pass 2
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efda3bd0 |
| 05-Sep-2006 |
Matthew Dillon <dillon@dragonflybsd.org> |
Rename malloc->kmalloc, free->kfree, and realloc->krealloc. Pass 1
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cdf89432 |
| 31-Dec-2005 |
Sepherosa Ziehau <sephe@dragonflybsd.org> |
{ether,ieee80211}_ifdetach() can't be called with serializer being held, since they will go through code which tries to hold serializer again, e.g. ether_ifdetach() -> if_detach() -> in_control()
So
{ether,ieee80211}_ifdetach() can't be called with serializer being held, since they will go through code which tries to hold serializer again, e.g. ether_ifdetach() -> if_detach() -> in_control()
So in various NICs' xxx_detach(): - Move bus_teardown_intr() under "(device_is_attached())", whenever it is applicable. Since it is not possible that intrhandle is NULL here, nuke original "(intrhandle != NULL)". This can: 1) Avoid holding serializer, if xxx_attach() fails 2) Release serializer ASAP 3) Ease following tasks - Hold serializer only for xxx_stop()(or similar functions which stops NIC) and bus_teardown_intr() - Call {ether,ieee80211}_ifdetach() after serializer is released
Other stuffs: - Serialize xxx_detach() for awi(4), ep(4), sn(4) and xe(4) - Release serializer before returning from {ed_pccard,ray}_detach() - Make ipw(4)'s ipw_detach() suitable for error handling, adjust ipw_attach() accordingly - Fix a bug in ex_pccard_detach(): instead of if_detach(), ether_ifdetach() should be used here - For ndis(4), "ifp->serializer" ==> "ifp->if_serializer" Reported-by: esmith <esmith@postmark.net>
Discussed-with: dillon and joerg Partially-Reviewed-by: dillon and joerg Reported-by: Steve Mynott <steve.mynott@gmail.com> and me
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78195a76 |
| 28-Nov-2005 |
Matthew Dillon <dillon@dragonflybsd.org> |
Make all network interrupt service routines MPSAFE part 1/3.
Replace the critical section that was previously used to serialize access with the LWKT serializer. Integrate the serializer into the IF
Make all network interrupt service routines MPSAFE part 1/3.
Replace the critical section that was previously used to serialize access with the LWKT serializer. Integrate the serializer into the IFNET structure. Note that kern.intr_mpsafe must be set to 1 for network interrupts to actually run MPSAFE. Also note that any interrupts shared with othre non-MP drivers will cause all drivers on that interrupt to run with the Big Giant Lock.
Network interrupt - Each network driver then simply passes that serializer to bus_setup_intr() so only a single serializer is required to process the entire interrupt path. LWKT serialization support is already 100% integrated into the interrupt subsystem so it will already be held as of when the registered interrupt procedure is called.
Ioctl and if_* functions - All callers of if_* functions (such as if_start, if_ioctl, etc) now obtain the IFNET serializer before making the call. Thus all of these entry points into the driver will now be serialized.
if_input - All code that calls if_input now ensures that the serializer is held. It will either already be held (when called from a driver), or the serializer will be wrapped around the call. When packets are forwarded or bridged between interfaces, the target interface serializer will be dropped temporarily to avoid a deadlock.
Device Driver access - dev_* entry points into certain pseudo-network devices now obtain and release the serializer. This had to be done on a device-by-device basis (but there are only a few such devices).
Thanks to several people for helping test the patch, in particular Sepherosa Ziehau.
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d2c71fa0 |
| 22-Nov-2005 |
Matthew Dillon <dillon@dragonflybsd.org> |
Fix the design of ifq_dequeue/altq_dequeue by adding an mbuf pointer and requiring that a polled mbuf be passed as an argument to the dequeue function. Assert that the passed argument matches the mb
Fix the design of ifq_dequeue/altq_dequeue by adding an mbuf pointer and requiring that a polled mbuf be passed as an argument to the dequeue function. Assert that the passed argument matches the mbuf that is actually dequeued. Also remove assignments of the return value from ifq_dequeue() in such cases which implied that the mbuf might be different when, in fact, it had better not be.
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39b5d600 |
| 28-Oct-2005 |
Matthew Dillon <dillon@dragonflybsd.org> |
Cleanup some of the newbus infrastructure.
* Change the device_identify API to return success/failure, like most of the other newbus methods. This may be used for conflict resolution in the fut
Cleanup some of the newbus infrastructure.
* Change the device_identify API to return success/failure, like most of the other newbus methods. This may be used for conflict resolution in the future.
* Clearly document the device_identify method and formalize its use by adding discrimination between initial bus probes and bus rescans. Do not re-execute static identification code that has already been run every time a new driver is added at run-time.
* Clearly document the do-ISA-last hack.
* Provide generic routines for the most common device_identify operations (psueo or synthesized devices that operate under other devices, such as lpt operating under ppbus, which are not 'scanned' by the parent bus).
* Remove the hacks that install and initialize the nexus device. Instead, use the existing DRIVER_MODULE infrastructure to install nexus under root_bus.
* Document the boot-time initialization path so it doesn't take the next guy 8 hours to figure out what code is actually being run when.
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2b71c8f1 |
| 24-Oct-2005 |
Sepherosa Ziehau <sephe@dragonflybsd.org> |
- Move DEVICE_POLLING from opt_global.h to opt_polling.h(newly added), so that polling(4) can be enabled in modules that are not built during kernel building - Add opt_polling.h to files that dep
- Move DEVICE_POLLING from opt_global.h to opt_polling.h(newly added), so that polling(4) can be enabled in modules that are not built during kernel building - Add opt_polling.h to files that depend on DEVICE_POLLING - Change related netif modules' Makefile to enable polling(4) support - Add comment in net/if_var.h to prevent DEVICE_POLLING related incompatibilities from being introduced Suggested-by: dillon
NOTE: As of this commit, any file that will depend on DEVICE_POLLING *must* include opt_polling.h at its beginning
With-helps-from: joerg Reviewed-by: dillon, submit@
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